Two goodies from Yes! 50 Scientifically Proven Ways to Be Persuasive by Noah Goldstein, Steve Martin, and Robert Cialdini.
First, try using “because” plus a reason, any reason, the next time you want something.
Behavioral scientist Ellen Langer and her colleagues decided to put the persuasive power of this word to the test. In one study, Langer arranged for a stranger to approach someone waiting in line to use a photocopier and simply ask, “Excuse me, I have five pages. May I use the Xerox machine?” Faced with the direct request to cut ahead in this line, 60 percent of the people were willing to agree to allow the stranger to go ahead of them. However, when the stranger made the request with a reason (“May I use the Xerox machine, because I’m in a rush?”), almost everyone (94 percent) complied…
Here’s where the study gets really interesting…This time, the stranger also used the word because but followed it with a completely meaningless reason. Specifically, the stranger said “May I use the Xerox machine, because I have to make copies?”
Second, if you’re running a telethon, change your standard “operators are standing by” line.
(Colleen) Szot changed the all-too-familiar call-to-action line, “Operators are waiting, please call now,” to, “If operators are busy, please call again.” On the face of it, the change appears foolhardy. After all, the message seems to convey that potential customers might have to waste their time dialing and redialing the toll-free number until they finally reach a sales representative. Yet, that surface view underestimates the power of the principle of social proof: When people are uncertain about a course of action, they tend to look outside themselves and to other people around them to guide their decisions and actions. In the Colleen Szot example, consider the kind of mental image likely to be generated when you hear “operators are waiting”: scores of bored phone representatives filing their nails, clipping their coupons, or twiddling their thumbs while they wait by their silent telephones — an image indicative of low demand and poor sales.
Now consider how your perception of the popularity of the product would change when you heard the phrase “if operators are busy, please call again.” Instead of those bored, inactive representatives, you’re probably imagining operators going from phone call to phone call without a break. In the case of the modified “if operators are busy, please call again” line, home viewers followed their perceptions of others’ actions, even though those others were completely anonymous. After all, “if the phone lines are busy, then other people like me who are also watching this infomercial are calling, too.”